1245053440420 has 24 divisors (see below), whose sum is σ = 2615347022400. Its totient is φ = 497881414752.

The previous prime is 1245053440399. The next prime is 1245053440427. The reversal of 1245053440420 is 240443505421.

It is not an unprimeable number, because it can be changed into a prime (1245053440427) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8674630 + ... + 8816989.

It is an arithmetic number, because the mean of its divisors is an integer number (108972792600).

Almost surely, 2^{1245053440420} is an apocalyptic number.

1245053440420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1245053440420 is an abundant number, since it is smaller than the sum of its proper divisors (1370293581980).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1245053440420 is a wasteful number, since it uses less digits than its factorization.

1245053440420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17495187 (or 17495185 counting only the distinct ones).

The product of its (nonzero) digits is 76800, while the sum is 34.

Adding to 1245053440420 its reverse (240443505421), we get a palindrome (1485496945841).

The spelling of 1245053440420 in words is "one trillion, two hundred forty-five billion, fifty-three million, four hundred forty thousand, four hundred twenty".